package com.nativetalk.common.util;

import javax.servlet.http.HttpServletRequest;

public class Ip {
    public static String getIpAddr(HttpServletRequest request) {

        String ip = request.getHeader("x-real-ip");
        if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {
            ip = request.getHeader("x-forwarded-for");
        }
        if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {
            ip = request.getHeader("Proxy-Client-IP");
        }
        if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {
            ip = request.getHeader("WL-Proxy-Client-IP");
        }
        if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {
            ip = request.getRemoteAddr();
        }
        if (ip.contains(",")) {
            String[] ips = ip.split(",");
            ip = ips[ips.length - 1].trim();
        }
        return ip;
    }
}
